Corn-harvesting machine.



W. s. BAIRD. CORN HARVESTING MACHINE.

' LPPLIGATIGN FILED 001.14, 1911.

1 077 9 3 I Patented Nov. 4, 1913.

s SHEETS-SHEET 1.

zwe r T' wfiysses" M MzAJM 4/ W S. BAI COR VESTING HINE.

IIIIIIIIIIIIIIIII GT.14, 1911. 1,971,963., Patented Nov. 4, 1913.

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' V I I I WJ /ZEZiSQ S: 1 2763097 "2 found applicable.

' j ITED "STATES PATEN FF C gaWILLIifl/f.SEWARDBAIRD, or uRBANA, rmimois, assrenon 'ro BA'IRncoRn nusnna or cHAMPAIGmILLI-noIa-a CORPORATION or soUrHpAKoTA.

fi paign'and State "of Illinois, have invented certain new and useful Improvements in cornfHarvesting Machines, of which the renewi g is' a description., Y

' "My invention belongs to thatigeneral class 0f devices lmown as corn harvesting ma-' chines, relates particularly to improved "snapping rolls therefor for feeding the fstalksandstanding corn into the machine, and jremoving'the iears' of corn from the I5 stalks.

it, The present invention is: in the nature of an improvement over the snapping rolls shown and described in my pending application, Serial No. 589,298, filed October 27,

201910,- und has among its objects'the production of'a moresimple, efli'cient, durable, "positive and satisfactory'dev-ice of the -kind described, that may bemanufactured at substantially" a low cost andused wherever T To" this end my inventionconsists in the novel con'struction, arrangement and combination of parts herein shown" and described, "more particularly pointed out in the 0 claims."

In the drawings, wherein like reference characters indicate like or corresponding parts, Figure 1 is a side elevation of one of the rolls- Fig.- 2 is a planv-iew' of a porv: tion of the rolls. Fig. 3 is'an' enlarged top plan View of a portion of two rolls. Fig. 4

is a cross sectional view of the same, tak en substantially on line 4, 4 of Fig. 3. Fig. is"'a' plan View of a portion of two rolls,

40 showing *a slightly modified construction,

,and Fig.6 isfa cross sectional vieW ofthe same, taken substantially on 11118 ,6, 6 of Fig; '5. I

Referring to the drawings, in which two formsof my device-are shown, the snapping mechanismcomprises two rolls arranged parallel, or side by side, and suitably I rotatably supported onthe machine. The rolls inay be driven in an'y'desired manner, 0 an'dar'efpreferably rotated in opposite directions. The rolls are each; spirally grooved, a-"plurality of grooves being "preferred, doublegrooves or threads beingsho'wn, which are provided with stalk engaging 5 means.

l ,oonn-nnnvnsrme MACHINE.

Specification of Letters Patent. a ueauon fi1ei1'0ctober14,1911. Serial No. 654,593,

Y may be driven by an internal combustion Patented ljqov. 4,

Referring particularly'to Figs. 3 and 4, two rolls 1 and 11 are shown. The roll'l is provided with spiral grooves 2 and 3, form' ing ridges 4: and 5, the grooves being of any desired depth and width, but spaced so that the ridges are substantially equal in width to the grooves so that the ridges of one roll may be positioned in the grooves of the other roll. On the rolls, as shown in the grooves 2 and 3, are provided a plurality of projecting lugs or pins 6, which may be formed integral with the roll or separable therefrom. A very satisfactory and the most economical construction is to cast the rolls with the lugs 6 formed-integrally with the body of the roll. It will be noted that the lugs are preferably slightly tapering, and while shown as rounded, may be of any other shape. In the ridges 4: and 5 are formed pockets or "recesses 7, thefsame be-..75 ing arranged so as to mate with lugs on the cooperating roll as the rolls are rotated. These depressions or recesses may be made of any desired shape, a very efiicient construction being tomakethem angular, as shown, with the edges somewhat sharp, but, however, not sharp enough to cut the stalks.

It will be noted by referring particularly to Fig. 1 that the lower end 8 of the roll is tapered and the grooves and ridges omitted at the extreme end of the roll. The lugs and recesses are also omitted from the grooves and ridges at the lower end'of the" rolls. The cooperating roll 11 is similarly formed with grooves 12 and Band ridges 14 and 15, together with the lugs 16 and recesses 17. The lugs and'recesses are so" ar-' ranged that they mate with the same on the cooperating roll described, as previously mentioned. -The pitch of-the grooves de- .pends upon thediameter of the rolls and in c'linatio-n of the same. 1

The rolls may be supported in any desired way, depending upon the particular construction of the machine upon which they are to be employed.- As shown in Fig. 1,'in which roll 1 is illustrated, the lower end of each roll issup'ported in a socket 21 carried. on" the frame 22 of the machine, the rolls being provided with supporting shafts 23 and 30, as illustrated in Figs. 1 and 2, 24 being a portion of the machine frame.

To rotat'e the rollsone shaft 23 is' extended and connected to a power shaft 26, which engine 27, or other source power. is, of course, understood that the shaft and shaft 26 may be connectedunany suitable manner, as for example by a bevel gear 25, a "universal coupl1ng, or thejequivalent The shaft 23 isprovided with a gear 28, arranged to mesh with a gear 29 onthe slia'ftSO, so Q that driving one shaft rotates both rolls in 1 V opposite directions.

- shown 1n Figs. 4: and 5, 111 whichthe pms or A slightly different constructionof rolls is -lugs 16 are omitted and the grooves corrugated or formed substantially as at'36, 37. Referring to this construction, the roll- 31 j ridgesfi l, 35.

ing substantially similar to the other form previously described. 7

The special value of this construction is the plurality of grooves and ridges having the lugs and recesses, or the corrugations and recesses. In operation the stalks enter between the rolls at the lower tapering ends, and are caught by the rolls and carried rearwardly. The ridges and groovesfon the lowering tapering ends being smooth or straight, the stalks arc forcedrearwardly .until they are well in "T rolls before being pulled down.

Th 21th,; being constructed with a plurality ofspiral grooves, the ridges may be close enorgh together so that the speed of the rolls "v." divide the stalks in.

the hill and feed them in one at a time, the stalks being prevented from bunching and choking the machine As soon as the stalks reach the lugs and recesses, theco-acting rolls crimp the stalks and pull them down, as well as rearward, removing the cars from the stalks with a minimum of shelling. The

action of the co-acting rolls is positive in crimping the stalks, bearing them down and forcing them rearward one at a time, all

ossibility of choking the machine by pullmg the stalks up by their roots and feeding them in' bunches being avoided, as previously mentioned. I have not considered itnecessary to illustrate the trash rolls, as shown in my pending application mentioned. The trash rolls may be employedif desired,

and may be constructed substantially similar to the snapping rolls herein described, the proportions ofthe same being as p referred. J

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of 'my' invention, hence I do not wish to be understood as limiting myself to the exact form, construction or combination of parts herein shown and described, or uses mentioned. 1

What I claim as new and desire to secure by Letters Patent is 1. In a device of the kind described, the combination of a pair of parallel s irally grooved rolls, each roll provided wit rojecting lugs in the grooves and spaced om the side walls thereof, and with recesses in the ridges, the lugs in each roll positioned to mate withthe recesses in the other roll, and means for rotating said rolls in opposite directions. r I

2-. In a device of the kind described, the combination of a pair of parallel spirally grooved rolls, each roll provided with projecting lugs in the grooves and with recesses in the ridges, said recesses being formed intermediate the side edges of the ridges, the lugs in each roll positioned to mate with the recesses in the other roll and means for rotating said rolls in opposite directions.

3. In a device of the kind described, the combination of a pair of parallel spirally grooved rolls, each roll provided witi projecting lugs in the grooves, and with rectangular shaped recesses in the ridges, the

' lugs in each roll positioned to mate with the recesses in the other roll, and means for rotating said rolls in opposite directions.

4. In a device of the kind described, the combination of apair of parallel spirally grooved rolls, each roll provided with tapering projecting lugs in the grooves and spaced from theside walls thereof, and with rectangular shaped recesses inthe rid es, said recesses being intermediate the side edges thereof, the lugs in each roll positioned tomato with the recesses in the other roll and means for rotating said rolls in op-' posite directions.

5. In a device of the kind described, the combination of a pair of rotatable rolls, each roll provided with two spirally extending grooves, the grooves of one roll extending in the opposite directions to the grooves of the other roll, means for supporting said rolls with the ridges of oneroll in the grooves of the opposite roll each roll provided with projecting lugs in the grooves and spaced from the side walls thereof, and with recesses in the ridges, the lugs in each roll positioned to mate with the recesses in the other roll, and means for rotating said rolls in opposite directions.

6. In a. device of the kind described, the combination of a pair of rotatable rolls, each roll provided with two spirally extending grooves, the grooves of one roll extending in the opposite direction to the grooves recesses in th of the other r011, means for supporting said rolls with the ridges of one roll in the grooves of the opposite r011, each roll provided with tapering projecting lugs located in thegrooves and spaced from the side Walls thereof, and 'With rectangular shaped ridges intermediate the side edges thereof, he lugs of each roll positioned to matewith the recesses in the other roll and means for rotating said rolls in 1J4) opposite directions. i I

In testimony whereof, I have hereunto signed my name in the presence of two sub scribing Witnesses.

WILLIAM SEWARD BAI'RD. Witnesses: c E. L. EVANS, EARL SAFsTRoM. 

